Kevin Hart and more raise awareness for ALS.
Plus, pics of Nelly, Rita Ora, K. Michelle, Jhené Aiko and more.
Viral posts from Rihanna, Drake, Kanye West and others.
Artists speaking out as tensions boil over in Missouri town.
Plus, pics from Jennifer Lopez, Beyoncé, Big Sean and more.
Plus Jeezy takes a stand in the Michael Brown case, and Rihanna commemorates Robin Williams.